I'm planning a visit to Austria soon (I live in the UK) - I just wondered is it still the case that you can buy a Yesss! Prepaid internet data SIM at any Hofer without any ID? And just pop it in an unlocked device to use without activation?

If not I wondered whether any German SIM plans have reasonable data roaming charges when used in Austria (I have contacts in Germany)?

blau.de has the same rate of 0,49€/MB for roaming in the EU, i think with 10kB increments. In Germany Blau uses the E-Plus network which is not the best, but for data in EU-countries it's fine. They also offer EU data packs (1 week/5€/50MB) Recently they changed their "EU-list". Now Switzerland is not included any more and costs now 2,49€MB.

Just to confirm, in late April I bought two Yesss SIMs (one phone SIM and one data SIM) from a Hofer store and they did not ask for ID. It was obvious that I was not Austrian...

This is not a guarantee as my experience is that such policies may not be consistent from one store to another. But at Hofer they were just sold by the lady at the checkout till, not some special office, and she didn't seem to have any concern other than trying to understand my half-remembered German.